ORGANIC ELECTRO LUMINESCENCE LIGHTING EMITTING DISPLAY DEVICE

摘要

An organic electro luminescence display is provided to reduce a driving current for driving an organic light emitting diode in comparison with a data current by reducing a voltage corresponding to the data current by the size ratio between a storage element and a coupling unit. A first switching element(T3) transfers a data current representing a data signal by a first scan signal. A second switching element(T4) transfers the data current from the first switching element by a second scan signal. A voltage corresponding to the data current from the second switching element is stored in a storage element(C1). A coupling unit(C2) changes the voltage stored in the storage element in accordance with the first scan signal. Driving elements(T1,T2) generate a driving current in accordance with the changed voltage. An organic light emitting diode(OLED) emits light in accordance with the driving current.